Let it dry perfectly and put piece of scotch tape in every nail, in diagonal or whatever you like the most. The idea is to paint only a piece of nail. This color that we are going to apply must have enough hiding power to do not show the silver color underneath. I use an intense red from Astor.

When the second color is completely dry, apply the second strap of scotch tape over the first and second color in a way of hidding part of silver and red (in my case). Put the scotch tape as you like to create geometric areas.